I've long since sold my sportsmobile. I do remember that they helped keep the gaucho bed stable. I also had an issue where the backrest would be lower than the seat portion when deployed, hence needing the legs to bring it up to proper height. It was worth the $50 I spent to get them. Not sure if you saw edit to my post but I ended up buying them from Sportsmobile West, not amazon.
One thing to look at when purchasing is the mounting tab. Look at them and make sure you can mount it to the gaucho frame.
2005 E350 Chateau - V10 - Agile Offroad 4x4
2012 CTS-V Wagon - For the baby...